Overview
PG&E D-250E L-131 MP 54.71 Direct Examination (PG&E DIGS Project) is an operational gas pipeline facility in Fremont, California, United States. It is part of Pacific Gas and Electric's natural gas transmission system.
PG&E D-250E L-131 MP 54.71 Direct Examination (PG&E DIGS Project) is a gas pipeline facility located in Fremont, Alameda County, California, United States. The facility is part of Pacific Gas and Electric's (PG&E) extensive natural gas transmission network, serving the San Francisco Bay Area. As a gas pipeline, it operates under the regulatory oversight of the Pipeline and Hazardous Materials Safety Administration (PHMSA) and complies with 49 CFR Part 192 for gas transmission safety. The facility is identified by its location along PG&E's Line 131 at milepost 54.71, and the 'Direct Examination' designation indicates a specific inspection or assessment project (PG&E DIGS Project). The pipeline transports natural gas from supply sources to local distribution networks, serving residential, commercial, and industrial customers in the Fremont area. Operationally, this pipeline segment plays a critical role in maintaining gas supply reliability for the region. PG&E's gas system is one of the largest in the United States, and regular direct examinations like this project are part of integrity management programs required by PHMSA to ensure pipeline safety. The facility's proximity to urban areas in Fremont underscores the importance of rigorous safety protocols and leak detection systems to protect public safety and the environment.
Environmental context
The pipeline is located in Fremont, a city in the San Francisco Bay Area with a mix of residential, commercial, and industrial land uses. The area is characterized by a Mediterranean climate with mild, wet winters and dry summers. The pipeline's proximity to populated areas and potential waterways, such as the nearby San Francisco Bay, necessitates robust corrosion protection and leak detection to prevent environmental impacts. Gas pipeline leaks can contribute to greenhouse gas emissions and pose explosion risks, making regular inspections and maintenance critical for environmental protection.
Frequently asked questions
The pipeline is located in Fremont, Alameda County, California, United States, specifically at 135 ft south east of 48688 Fremont Blvd, zip code 94555.
The PG&E DIGS Project (Direct Examination) is an integrity management activity to inspect and assess the condition of the pipeline segment, ensuring compliance with safety regulations and preventing leaks or failures.
Gas pipelines in the United States are regulated by the Pipeline and Hazardous Materials Safety Administration (PHMSA) under 49 CFR Part 192, which sets standards for design, construction, operation, and maintenance.
Safety measures include cathodic protection to prevent corrosion, regular patrols, leak detection systems, and integrity management programs that require periodic direct examinations like the DIGS Project.
This pipeline is part of PG&E's natural gas transmission system, delivering natural gas to local distribution networks that serve residential, commercial, and industrial customers in the Fremont area and the broader San Francisco Bay region.
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